Update on Omicron

<p><span style="color: #3c4245; font-family: Arial, Helvetica, sans-serif; font-size: 16px;">On 26 November 2021,</span><strong style="color: #3c4245; font-family: Arial, Helvetica, sans-serif; font-size: 16px;">&nbsp;</strong><span style="color: #3c4245; font-family: Arial, Helvetica, sans-serif; font-size: 16px;">WHO designated the variant B.1.1.529 a variant of concern, named Omicron, on the advice of&nbsp;WHO’s&nbsp;</span><a style="color: #008dc9; font-family: Arial, Helvetica, sans-serif; font-size: 16px;" href="https://www.who.int/groups/technical-advisory-group-on-sars-cov-2-virus-... Advisory Group on Virus Evolution</a><span style="color: #3c4245; font-family: Arial, Helvetica, sans-serif; font-size: 16px;">&nbsp;(TAG-VE).&nbsp;&nbsp;This decision was based on the evidence presented to the TAG-VE that&nbsp;Omicron&nbsp;has several mutations that may have an impact on how it behaves, for example, on&nbsp;how easily it spreads or the severity of illness it causes.&nbsp;Here is a summary of what is currently known.</span></p>